Or possibly virtual network/adapter issues preventing the fog server from from communicating with the host OS, because in the first picture I see you’re using Virtual Box. But I tend to still think you’re not putting in the fog server’s IP address during client install.

If I had a guess is the install was done with all defaults? This sets the client server address to fog-server if I recall correctly. However, there likely isn’t a DNS record with that name. As all the rest stated, most likely bad server.

You must disable the fog service on your reference image before you sysprep it and capture with FOG or you will have OOBE boot problems. You will want to enable the FOG Client in the setupcomplete.cmd file to allow FOG to manage the client once OOBE is done.